Use an appropriate half-angle formula to find the exact value of the expression. cos 3π 8

Fill in the table with whole numbers to make 430 in five different ways

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)

Order the equations from least to greatest based on the number of solutions to each equation.-4^x -1 = 3^(-x) – 2 -3x + 6 = 2^x+13^x – 3 = 2x - 2